A diamond grinding wheel with good heat dissipation

Abstract

This utility model relates to the field of abrasive technology, specifically disclosing a diamond grinding wheel with good heat dissipation, including a base connected to a grinding machine; multiple grinding wheel blocks are fixedly connected to the lower end face of the base; the side of the base is provided with a protruding edge; a free ring is rotatably connected to the upper end of the base; a limit ring is detachably fixed to the free ring corresponding to the protruding edge; an inclined air duct is inclinedly connected to the upper surface of the free ring; an external air pump and air pipe are connected through the inclined air duct, so that air with a pressure greater than one atmosphere is supplied through the inclined air duct as a driving power source, while restricting the rotation of the inclined air duct and the free ring to keep them stationary. Then, the base and grinding wheel blocks are driven to rotate by the grinding machine spindle for grinding. Then, as the base rotates, the multiple inclined air holes are sequentially connected to the inclined air duct to transport high-speed flowing air. The heat generated by the grinding of the workpiece and grinding wheel blocks in the base keeps the workpiece and grinding wheel blocks at room temperature and prevents them from expanding and deforming, thus affecting the grinding accuracy.

Description

Technical Field

[0001] This utility model relates to the field of abrasive technology, specifically a diamond grinding wheel with good heat dissipation. Background Technology

[0002] Diamond grinding wheels are circular bonded abrasive tools with a central through hole, made from diamond abrasive as raw material and using metal powder, resin powder, ceramic, or electroplated metal as binders. When the grinding wheel rubs against the workpiece, it generates heat, and high heat can have adverse effects.

[0003] Chinese invention patent CN105014560B, published on April 26, 2017, discloses an active heat dissipation grinding wheel, comprising a grinding wheel disc, an aluminum core, and a diaphragm. The grinding wheel disc has a central cavity, a central through hole, a heat dissipation groove, and a heat dissipation through hole. Without affecting grinding efficiency and grinding wheel strength, the addition of the heat dissipation groove and through hole, along with the closed and intersecting heat dissipation bands, ensures sufficient heat dissipation area and effectively dissipates heat from inside the grinding wheel disc. The diaphragm structure effectively utilizes the vibration generated during grinding, combined with the aforementioned heat dissipation groove and channel, to form an active heat dissipation method. The diaphragm vibration causes the air in the two chambers of the grinding wheel disc to vibrate, and the airflow enters and exits the heat dissipation through hole and groove, achieving convective heat dissipation.

[0004] However, the above-mentioned disclosed solutions have the following shortcomings: the heat dissipation devices of the existing technology are all passive heat dissipation devices, resulting in low heat dissipation efficiency and inability to quickly dissipate the heat generated by the grinding wheel. As a result, the workpiece and the grinding wheel will deform due to thermal expansion and contraction caused by the accumulated heat, leading to a reduction in grinding accuracy. Utility Model Content

[0005] The purpose of this invention is to solve the technical problem that existing heat dissipation devices are all passive heat dissipation devices, resulting in low heat dissipation efficiency and inability to quickly dissipate the heat generated by grinding wheels. As a result, the workpiece and grinding wheel deform due to thermal expansion and contraction caused by the accumulated heat, leading to a reduction in grinding accuracy. The invention provides a diamond grinding wheel with good heat dissipation performance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution;

[0007] The present invention discloses a diamond grinding wheel with good heat dissipation, comprising a base connected to a grinding machine; a plurality of grinding wheel blocks are fixedly connected to the lower end face of the base; a protruding edge is provided on the side of the base; a free ring is rotatably connected to the upper end of the base; a limit ring is detachably fixedly connected to the free ring corresponding to the protruding edge; an inclined air duct is inclinedly connected to the upper surface of the free ring; a plurality of inclined air holes are opened on the base connecting to the inclined air duct.

[0008] Furthermore, a limiting slotted plate is fixedly connected at intervals within the base; a free plate is rotatably connected between the limiting slotted plate and the base; multiple air guide slots are opened on the upper surface of the free plate corresponding to the inclined air holes; a fan blade is fixedly connected to the lower surface of the free plate; and a limiting clamping plate is detachably fixed to the limiting slotted plate.

[0009] The diamond grinding wheel with good heat dissipation provided by this utility model has the following beneficial effects:

[0010] 1. This utility model connects an external air pump and air pipe through an inclined air duct, so that air with a pressure greater than one atmosphere is supplied through the inclined air duct as a driving power source. At the same time, the rotation of the inclined air duct and the free ring is restricted to keep them stationary. Then, the base and the grinding wheel block are driven to rotate by the grinding machine spindle for grinding. Then, as the base rotates, multiple inclined air holes are connected to the inclined air duct in sequence to deliver high-speed airflow. The heat generated by the grinding of the workpiece and the grinding wheel block in the base keeps the workpiece and the grinding wheel block at room temperature and prevents them from expanding and deforming, which would affect the grinding accuracy.

[0011] 2. This utility model connects an external air pump and air pipe, allowing air with a pressure greater than one atmosphere to be supplied through an inclined air duct as a driving power source. At the same time, the rotation of the inclined air duct and the free ring is restricted to remain stationary. Then, the base and grinding wheel are driven to rotate by the grinding machine spindle for grinding. As the base rotates, multiple inclined air holes are sequentially connected to the inclined air duct to supply air. The high-speed airflow passing through the inclined air holes contacts the air guide groove and is forced to drive the free plate and fan blades to rotate, generating a larger area of ​​airflow. This quickly removes the heat generated during the grinding process, keeping the workpiece and grinding wheel at room temperature and preventing them from expanding and deforming, which would affect the grinding accuracy. Attached Figure Description

[0012] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings;

[0013] Figure 1 This is a schematic diagram of the first explosive structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the second explosive structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the first isometric structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the second isometric structure of this utility model.

[0017] The following are the labels in the diagram: 1. Base; 2. Protruding edge; 3. Free ring; 4. Limiting ring; 5. Inclined duct; 6. Inclined air hole; 7. Limiting slotted plate; 8. Free plate; 9. Air guide groove; 10. Limiting plate; 11. Grinding wheel block; 12. Fan blade. Detailed Implementation

[0018] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0019] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] It should be noted that all directional indications (such as up-down-left-right-forward-backward...) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0021] Please see Figure 1-4 As shown, a diamond grinding wheel with good heat dissipation includes a base 1 connected to a grinding machine; multiple grinding wheel blocks 11 are fixedly connected to the lower end face of the base 1; a protruding edge 2 is provided on the side of the base 1; a free ring 3 is rotatably connected to the upper end of the base 1; a limit ring 4 is detachably fixed to the free ring 3 corresponding to the protruding edge 2; an inclined air duct 5 is inclinedly connected to the upper surface of the free ring 3; multiple inclined air holes 6 are opened on the base 1 connected to the inclined air duct 5; an external air pump and air pipe are connected through the inclined air duct 5, so that air with a pressure greater than one atmosphere is supplied through the inclined air duct 5 as a driving power source, while restricting the rotation of the inclined air duct 5 and the free ring 3 to keep them stationary. Then, the base 1 and the grinding wheel blocks 11 are driven to rotate by the grinding machine spindle for grinding. Then, as the base 1 rotates, the multiple inclined air holes 6 are sequentially connected to the inclined air duct 5 to transport high-speed flowing air. The heat generated by the grinding of the workpiece and the grinding wheel blocks 11 in the base 1 keeps the workpiece and the grinding wheel blocks 11 at room temperature and prevents them from expanding and deforming, thus affecting the grinding accuracy.

[0022] A limiting slotted plate 7 is fixedly connected at intervals inside the base 1; a free plate 8 is rotatably connected between the limiting slotted plate 7 and the base 1; multiple air guide slots 9 are opened on the upper surface of the free plate 8 corresponding to the inclined air holes 6; a fan blade 12 is fixedly connected to the lower surface of the free plate 8; a limiting clamping plate 10 is detachably fixed to the limiting slotted plate 7. By connecting an external air pump and air pipe, air with a pressure greater than one atmosphere is supplied through the inclined air pipe 5 as a driving power source, while limiting the rotation of the inclined air pipe 5 and the free ring 3 to keep them stationary. Then, the base 1 and the grinding wheel block 11 are driven to rotate by the grinding machine spindle for grinding. Then, as the base 1 rotates, the multiple inclined air holes 6 are connected to the inclined air pipe 5 in sequence to supply air. The high-speed airflow passing through the inclined air holes 6 contacts the air guide slots 9 and is forced to push the free plate 8 and the fan blade 12 to rotate, generating a larger area of ​​airflow, thereby quickly removing the heat generated during the grinding process, so that the workpiece and the grinding wheel block 11 remain at room temperature and do not expand or deform, affecting the grinding accuracy.

[0023] The angle between the inclined air duct 5 and the free ring 3 is 45 degrees, which allows the high-speed airflow in the inclined air duct 5 to quickly blow the free ring 3 to rotate, thereby driving the airflow to carry away the heat generated during the grinding process.

[0024] The inclined air duct 5 is equipped with a quick-release connector, which allows for easy and quick connection of an external air pump and air pipe, enabling the supply of air at a pressure greater than one atmosphere to pass through the inclined air duct 5 as a driving power source.

[0025] The air guide slot 9 is connected to the cylindrical surface of the free plate 8, allowing air to be discharged through the cylindrical surface of the free plate 8 in a timely manner. This prevents air from accumulating in the air guide slot 9 and causing an increase in air pressure, thereby creating a larger air pressure difference and generating a higher-speed airflow to drive the air guide slot 9 and the free plate 8 to rotate.

[0026] The inclined air duct 5 and the inclined air hole 6 have the same angle and the same distance from the central axis of the base 1. This allows the inclined air duct 5 to remain stationary when connected to an external air pressure pipeline and an air pump. The inclined air hole 6 rotates as the base 1 is driven by the grinding machine spindle, so that multiple inclined air holes 6 are connected to the inclined air duct 5 in sequence to deliver pressurized air. The airflow entering the inclined air hole 6 blows the air guide groove 9 under force, pushing the free plate 8 to rotate at high speed between the base 1 and the limiting slotted plate 7. This causes the fan blade 12 to rotate, forming a high-pressure airflow that blows over a large area onto the surface of the workpiece being ground and the surface and gaps of the grinding wheel block 11. This allows the heat to be carried away quickly, ensuring that the heat generated during the grinding process is carried away in time, preventing the grinding block 11 and the workpiece from heating up and expanding and deforming.

[0027] The inclined air hole 6 is aligned with the air guide groove 9, so that the air passing through the inclined air hole 6 can come into contact with the air guide groove 9, thereby being subjected to force in the air guide groove 9, pushing the free plate 8 to rotate at high speed between the base 1 and the limiting slotted plate 7, thereby rotating the fan blade 12 to form a high-pressure airflow, which blows over a large area onto the surface of the grinding workpiece and the surface and gaps of the grinding wheel block 11, thereby quickly removing heat. This ensures that the heat generated during the grinding process is removed in time, preventing the grinding block 11 and the workpiece from heating up and causing expansion and deformation.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A diamond grinding wheel with good heat dissipation, characterized in that; It includes a base (1) connected to a grinding machine; a plurality of grinding wheel blocks (11) are fixedly connected to the lower end face of the base (1); a protruding edge (2) is provided on the side of the base (1); a free ring (3) is rotatably connected to the upper end of the base (1); a limit ring (4) is detachably fixed to the free ring (3) corresponding to the protruding edge (2); an inclined air duct (5) is inclinedly connected to the upper surface of the free ring (3); a plurality of inclined air holes (6) are opened on the base (1) and the inclined air duct (5).

2. The diamond grinding wheel with good heat dissipation according to claim 1, characterized in that: A limiting slotted plate (7) is fixedly connected at intervals inside the base (1); a free plate (8) is rotatably connected between the limiting slotted plate (7) and the base (1); a plurality of air guide slots (9) are opened on the upper surface of the free plate (8) corresponding to the inclined air hole (6); a fan blade (12) is fixedly connected to the lower surface of the free plate (8); a limiting card plate (10) is detachably fixed to the limiting slotted plate (7).

3. The diamond grinding wheel with good heat dissipation according to claim 1, characterized in that: The angle between the inclined duct (5) and the free ring (3) is forty-five degrees.

4. The diamond grinding wheel with good heat dissipation according to claim 1, characterized in that: The inclined air duct (5) is equipped with a quick-release connector.

5. The diamond grinding wheel with good heat dissipation according to claim 2, characterized in that: The air guide groove (9) is connected to the cylindrical surface of the free plate (8).

6. The diamond grinding wheel with good heat dissipation according to claim 1, characterized in that: The inclined air duct (5) and the inclined air hole (6) have the same angle and are at the same distance from the central axis of the base (1).

7. The diamond grinding wheel with good heat dissipation according to claim 2, characterized in that: The inclined air hole (6) is aligned with the air guide groove (9).

Images